ike: Add an additional but separate AEAD proposal to IKE config, if supported
[strongswan.git] / src / conftest / config.c
1 /*
2 * Copyright (C) 2010 Martin Willi
3 * Copyright (C) 2010 revosec AG
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 */
15
16 #include "config.h"
17
18 #include <daemon.h>
19 #include <conftest.h>
20
21 typedef struct private_config_t private_config_t;
22
23 /**
24 * Private data of an config_t object.
25 */
26 struct private_config_t {
27
28 /**
29 * Public config_t interface.
30 */
31 config_t public;
32
33 /**
34 * List of loaded peer configs
35 */
36 linked_list_t *configs;
37 };
38
39 /**
40 * filter function for ike configs
41 */
42 static bool ike_filter(void *data, peer_cfg_t **in, ike_cfg_t **out)
43 {
44 *out = (*in)->get_ike_cfg(*in);
45 return TRUE;
46 }
47
48 METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*,
49 private_config_t *this, host_t *me, host_t *other)
50 {
51
52 return enumerator_create_filter(
53 this->configs->create_enumerator(this->configs),
54 (void*)ike_filter, NULL, NULL);
55 }
56
57 METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*,
58 private_config_t *this, identification_t *me, identification_t *other)
59 {
60 return this->configs->create_enumerator(this->configs);
61 }
62
63 METHOD(backend_t, get_peer_cfg_by_name, peer_cfg_t*,
64 private_config_t *this, char *name)
65 {
66 enumerator_t *e1, *e2;
67 peer_cfg_t *current, *found = NULL;
68 child_cfg_t *child;
69
70 e1 = this->configs->create_enumerator(this->configs);
71 while (e1->enumerate(e1, &current))
72 {
73 e2 = current->create_child_cfg_enumerator(current);
74 while (e2->enumerate(e2, &child))
75 {
76 if (streq(child->get_name(child), name))
77 {
78 found = current;
79 found->get_ref(found);
80 break;
81 }
82 }
83 e2->destroy(e2);
84 if (found)
85 {
86 break;
87 }
88 }
89 e1->destroy(e1);
90 return found;
91 }
92
93 /**
94 * Load IKE config for a given section name
95 */
96 static ike_cfg_t *load_ike_config(private_config_t *this,
97 settings_t *settings, char *config)
98 {
99 enumerator_t *enumerator;
100 ike_cfg_t *ike_cfg;
101 proposal_t *proposal;
102 char *token;
103
104 ike_cfg = ike_cfg_create(IKEV2, TRUE,
105 settings->get_bool(settings, "configs.%s.fake_nat", FALSE, config),
106 settings->get_str(settings, "configs.%s.lhost", "%any", config),
107 settings->get_int(settings, "configs.%s.lport", 500, config),
108 settings->get_str(settings, "configs.%s.rhost", "%any", config),
109 settings->get_int(settings, "configs.%s.rport", 500, config),
110 FRAGMENTATION_NO, 0);
111 token = settings->get_str(settings, "configs.%s.proposal", NULL, config);
112 if (token)
113 {
114 enumerator = enumerator_create_token(token, ",", " ");
115 while (enumerator->enumerate(enumerator, &token))
116 {
117 proposal = proposal_create_from_string(PROTO_IKE, token);
118 if (proposal)
119 {
120 ike_cfg->add_proposal(ike_cfg, proposal);
121 }
122 else
123 {
124 DBG1(DBG_CFG, "parsing proposal '%s' failed, skipped", token);
125 }
126 }
127 enumerator->destroy(enumerator);
128 }
129 else
130 {
131 ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
132 ike_cfg->add_proposal(ike_cfg, proposal_create_default_aead(PROTO_IKE));
133 }
134 return ike_cfg;
135 }
136 /**
137 * Load CHILD config for given section names
138 */
139 static child_cfg_t *load_child_config(private_config_t *this,
140 settings_t *settings, char *config, char *child)
141 {
142 child_cfg_t *child_cfg;
143 lifetime_cfg_t lifetime = {};
144 enumerator_t *enumerator;
145 proposal_t *proposal;
146 traffic_selector_t *ts;
147 ipsec_mode_t mode = MODE_TUNNEL;
148 char *token;
149 u_int32_t tfc;
150
151 if (settings->get_bool(settings, "configs.%s.%s.transport",
152 FALSE, config, child))
153 {
154 mode = MODE_TRANSPORT;
155 }
156 tfc = settings->get_int(settings, "configs.%s.%s.tfc_padding",
157 0, config, child);
158 child_cfg = child_cfg_create(child, &lifetime, NULL, FALSE, mode,
159 ACTION_NONE, ACTION_NONE, ACTION_NONE,
160 FALSE, 0, 0, NULL, NULL, tfc);
161
162 token = settings->get_str(settings, "configs.%s.%s.proposal",
163 NULL, config, child);
164 if (token)
165 {
166 enumerator = enumerator_create_token(token, ",", " ");
167 while (enumerator->enumerate(enumerator, &token))
168 {
169 proposal = proposal_create_from_string(PROTO_ESP, token);
170 if (proposal)
171 {
172 child_cfg->add_proposal(child_cfg, proposal);
173 }
174 else
175 {
176 DBG1(DBG_CFG, "parsing proposal '%s' failed, skipped", token);
177 }
178 }
179 enumerator->destroy(enumerator);
180 }
181 else
182 {
183 child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
184 }
185
186 token = settings->get_str(settings, "configs.%s.%s.lts", NULL, config, child);
187 if (token)
188 {
189 enumerator = enumerator_create_token(token, ",", " ");
190 while (enumerator->enumerate(enumerator, &token))
191 {
192 ts = traffic_selector_create_from_cidr(token, 0, 0, 65535);
193 if (ts)
194 {
195 child_cfg->add_traffic_selector(child_cfg, TRUE, ts);
196 }
197 else
198 {
199 DBG1(DBG_CFG, "invalid local ts: %s, skipped", token);
200 }
201 }
202 enumerator->destroy(enumerator);
203 }
204 else
205 {
206 ts = traffic_selector_create_dynamic(0, 0, 65535);
207 child_cfg->add_traffic_selector(child_cfg, TRUE, ts);
208 }
209
210 token = settings->get_str(settings, "configs.%s.%s.rts", NULL, config, child);
211 if (token)
212 {
213 enumerator = enumerator_create_token(token, ",", " ");
214 while (enumerator->enumerate(enumerator, &token))
215 {
216 ts = traffic_selector_create_from_cidr(token, 0, 0, 65535);
217 if (ts)
218 {
219 child_cfg->add_traffic_selector(child_cfg, FALSE, ts);
220 }
221 else
222 {
223 DBG1(DBG_CFG, "invalid remote ts: %s, skipped", token);
224 }
225 }
226 enumerator->destroy(enumerator);
227 }
228 else
229 {
230 ts = traffic_selector_create_dynamic(0, 0, 65535);
231 child_cfg->add_traffic_selector(child_cfg, FALSE, ts);
232 }
233 return child_cfg;
234 }
235
236 /**
237 * Load peer config for a given section name
238 */
239 static peer_cfg_t *load_peer_config(private_config_t *this,
240 settings_t *settings, char *config)
241 {
242 ike_cfg_t *ike_cfg;
243 peer_cfg_t *peer_cfg;
244 auth_cfg_t *auth;
245 child_cfg_t *child_cfg;
246 enumerator_t *enumerator;
247 identification_t *lid, *rid;
248 char *child, *policy, *pool;
249 uintptr_t strength;
250
251 ike_cfg = load_ike_config(this, settings, config);
252 peer_cfg = peer_cfg_create(config, ike_cfg, CERT_ALWAYS_SEND,
253 UNIQUE_NO, 1, 0, 0, 0, 0, FALSE, FALSE, TRUE,
254 0, 0, FALSE, NULL, NULL);
255
256 auth = auth_cfg_create();
257 auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
258 lid = identification_create_from_string(
259 settings->get_str(settings, "configs.%s.lid", "%any", config));
260 auth->add(auth, AUTH_RULE_IDENTITY, lid);
261 peer_cfg->add_auth_cfg(peer_cfg, auth, TRUE);
262
263 auth = auth_cfg_create();
264 auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
265 rid = identification_create_from_string(
266 settings->get_str(settings, "configs.%s.rid", "%any", config));
267 strength = settings->get_int(settings, "configs.%s.rsa_strength", 0, config);
268 if (strength)
269 {
270 auth->add(auth, AUTH_RULE_RSA_STRENGTH, strength);
271 }
272 strength = settings->get_int(settings, "configs.%s.ecdsa_strength", 0, config);
273 if (strength)
274 {
275 auth->add(auth, AUTH_RULE_ECDSA_STRENGTH, strength);
276 }
277 policy = settings->get_str(settings, "configs.%s.cert_policy", NULL, config);
278 if (policy)
279 {
280 auth->add(auth, AUTH_RULE_CERT_POLICY, strdup(policy));
281 }
282 auth->add(auth, AUTH_RULE_IDENTITY, rid);
283 peer_cfg->add_auth_cfg(peer_cfg, auth, FALSE);
284 pool = settings->get_str(settings, "configs.%s.named_pool", NULL, config);
285 if (pool)
286 {
287 peer_cfg->add_pool(peer_cfg, pool);
288 }
289
290 DBG1(DBG_CFG, "loaded config %s: %Y - %Y", config, lid, rid);
291
292 enumerator = settings->create_section_enumerator(settings,
293 "configs.%s", config);
294 while (enumerator->enumerate(enumerator, &child))
295 {
296 child_cfg = load_child_config(this, settings, config, child);
297 peer_cfg->add_child_cfg(peer_cfg, child_cfg);
298 }
299 enumerator->destroy(enumerator);
300 return peer_cfg;
301 }
302
303 METHOD(config_t, load, void,
304 private_config_t *this, settings_t *settings)
305 {
306 enumerator_t *enumerator;
307 char *config;
308
309 enumerator = settings->create_section_enumerator(settings, "configs");
310 while (enumerator->enumerate(enumerator, &config))
311 {
312 this->configs->insert_last(this->configs,
313 load_peer_config(this, settings, config));
314 }
315 enumerator->destroy(enumerator);
316 }
317
318 METHOD(config_t, destroy, void,
319 private_config_t *this)
320 {
321 this->configs->destroy_offset(this->configs, offsetof(peer_cfg_t, destroy));
322 free(this);
323 }
324
325 /**
326 * See header
327 */
328 config_t *config_create()
329 {
330 private_config_t *this;
331
332 INIT(this,
333 .public = {
334 .backend = {
335 .create_ike_cfg_enumerator = _create_ike_cfg_enumerator,
336 .create_peer_cfg_enumerator = _create_peer_cfg_enumerator,
337 .get_peer_cfg_by_name = _get_peer_cfg_by_name,
338 },
339 .load = _load,
340 .destroy = _destroy,
341 },
342 .configs = linked_list_create(),
343 );
344
345 return &this->public;
346 }